Wing for flying-machines.



W. KRIEDTER' L W. H. BOURBON.

WING FOB. FLYING MACHINES.

APPLICATION FILED FEB. 23, 1910.

Patented May 30, 1911.

WTNESSES:

UNITED PATENT OFFICE.

WILLIAM KRIEDTER AND WILLIAM HENRY BOUILCDQN, 0F NEW YQRK, N.

WING FOR FLYING-MACHINES.

To alwhom 'it may concern: "'Be itknown that we, ll/'intimi Kan-:oren and VILLIAM H. BoUnnoN, both citizens of the United States, and residents of the city of N ew York, borough of Manhattan, in the county and State of New York, have invented anew and Improved Wing for Flying-li/Iacliines, of which the following is a full, clealr, and exact description.

Our invention relates to flying machines, our more particular purpose being to provide an improved wing or analogous member for usein connection with the same.

We have made the discovery that if, in'

almost anytype of flying machine, where a. wing is used', the outer end of the wing be provided with a box, made for instance after the manner of a box kite, the stability oit the wing and of all mechanism controllable by it is greatly increased. Ve have also made the discovery that if a wing be built with a box at its outer end, a comparatively small wing surface will answer for a given breadth and length of wing, and a renter power is attained for the purpose o steering, floating, steadying, or otherwise controlling the craft to which the wing relates.

Reference is to be had to the accompanying drawings `forming a part of this specilication, in which similar characters of re't` erence indicate corresponding parts in all the figures.

Figure 1 is a perspective showing a pair of Wings made in accordance with our invention and containing boxes at the tip or outer ends of the wings; Fig. 2 is a rear ele- `.vation of the pair of wings shown in Fig. 1;

nd Fig. 3 is a side elevation showing more i particularly thebox at the tip' ot'. the wing.

At 4, 5 are frame pieces having/more or less analogy to the main bonesfin the wing of a bird, and at 6 are fraaie piecesI crossing the general direction oi the frame pieces ll, At 7 is a web which, in this instance, is of double thickness. This web is provided with scalloped edges 8, as shown in Fig. l. The web is further provided with portions S), l0 which diverge from each other by a slight but gradual curve, as indicated in Fig. 2.

1,13 isu cross web which extends from oneputer'portion 9 to the opposite outer portion 10, the web 13 being practically the tip of the Wing. l

At'll, 12 are spring ribswhich are firmly connected with the. framey pieces 4, 5, and

Specification. of Letters Patent.

p Application led February 23, 1910. Serial No. 545,281.

Patented May 30,1911.

with the outermost frame piece 6.` Two ribs 14 are connected with the ribs 11, 12.

The operation of our device is as follows: lVhen the wing is mountedlon a flying machine and this machine is driven against the air, the portions 9, 10, 13 ofwebbine act together as a box, or in other words, tllieouter or tip end et' the wing acts as if it were under control of a box kite. The stability of the wing is thus increased very greatly. l\Ioreover, other things being equal, the supporting power of the wing-that is, its power to make the machine float when used as an aeroplane-is increased to such extent that a smaller wing, if built in accordance with our invention, may take the place of a larger wing of ordinary construction. It. will be noted that all three portions 9, 10, 13 of the webbing are substantially parallel with the general direction of the frame pieces 6, and therefore are parallel with thegeneral direction in which the iiyin machine travels.V If, now, a disturbing air current tends to upset the machine, and blows, we will say, against the box at some peculiar and undesirable an fle, this disturbing gust of air can not readi y upset the machine for the reason that in lorder to do so it must disturb, to a considerable extent, all the web portions 9, 10, 1 3. That is to say, these three web portions are not acted upon in the same way by any given air current, and consequently they tend to retain their own sta- Y bility and that of the machine, for the reason just stated, which appears to be that controlling the stability of the box kite. The two ribs 14 are connected with the ribs 11, 1.2 and extend directly across the wing, the ribs 'ist heilig curved slightly as indicated in Fig. 3. We find that this slight curvature ot' the ribs llt also increases the' stability of the wing and that of the machine. The reason for this is probably due to the fact that by giving the ends of the wing a slight convexity as will be understood from Fig. 3, the ends ot' the box are not so apt to be unduly distended in case ot a sudden gust of wind. A

Having thus described our invention, we claim as new and desire tosecnre by Letters Patent:

l. ln a wing for flying machines, the combination of a body portion and a tip, said tip comprising two web portions ,diverging from each other by a slight curve, and anweb portion extending from one of said first# other web portion extending across from one of said first-mentioned wel@v portions to another. y

-2., In a wingfthe combination of two web portions diverging from each other, a third mentioned .web portions to the other, and curved ribs engaging-the diverging web portions for the purpose of rendering the same and another webportion .extending across `from the outer end of one of said ,two web.

portions to the outer end of the other.

vIn testimony whereof we have signed our names to this specieation in the presence 20 of. two subscribin witnesses.

WILLI KRIEDTER. 4' WLLIAM HENRY BOURBON.4 XVitnesses:

BENJAMIN FRANKLIN HILL, y RICHARD H. Unusxm. 

